toshiba water solutions pvt. ltd
TRANSCRIPT
Toshiba Water Solutions Pvt. Ltd.
Water & Waste Water Treatment Market in India&&Sustainable Solution for ZLD
© 2019 Toshiba Water Solutions Pvt. Ltd.
Amit BhatiaGeneral ManagerHead of Industrial Business DevelopmentToshiba Water Solutions Pvt. Ltd.
0101INTRODUCTIONINTRODUCTION
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Introduction
Toshiba Water Solutions Pvt. Ltd., (A Group Company of TOSHIBA Corporation, Japan)
An international multi-disciplined environmental services companyspecialized in providing turnkey design and construction services in thespecialized in providing turnkey design and construction services in thefield of water and wastewater segment for industries and municipalities.
• Started its journey in 1973 as a Utility management company inFlorida, USA.
• Jumpstarted Indian Operations in 1983 with several Industrial sectorturnkey deals for treatment of wastewater from ethanol distilleries.
• Completed over 350 installations in approx. 35 countries.
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Global Footprint with Local Expertise
Georgia Branch
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Journey of over 45 years of Experience
UEM started operating as a UEM’s first turnkey contract UEM entered the municipalb
True North, a PE Toshiba 100 % stakeiUtility management
company in Florida, USAand provided operations &maintenance services towater & waste waterplants in South & CentralFlorida
and first export awarded in1977 to treat sewage fromJamaican sugar plantationcolony.
UEM created a strong base inTrinidad and Tobago, building
sewage treatment segment bywinning an order for a largesewage treatment plant forthe City of Delhi. It was thefirst STP in India to includeanaerobic sludge digestionand power generation. (Cap
182 MLD)
firm, acquired majoritystake in UEM. UEMcompletedthe largest sewageMBR in India for theCommonwealth GamesVillage.
acquired 26% stake inUEM.
in UEM Isacquired byToshiba
1973 1975 1977‐79 1983 1995 1998 2010
over 20 STPs between 1977 –79.
– 182 MLD)
2013 2014 2015 2018 2019
1973 1977 ‐ 79 1983 1995 1998 2010 2013 2014 2016 2018UEM was the largestO&M Company instate of Florida withover 75 client
UEM started India operations, withincorporation of UEM India. Indianoperations were jumpstarted withseveral turnkey deals for
UEM opened its third office, located inTrinidad and Tobago, which was promptedafter UEM won orders for some largemunicipal water treatment plant contracts
UEM activelyparticipated inZLD & otherprojects and
ToshibaacquiredMajoritystake (80%)
UEM’s.name changed to Toshiba
over 75 clientaccounts
several turnkey deals fortreatment of wastewater fromethanol distilleries.
UEM brought to Asia a uniquefloating cover design for anaerobicdigesters, which greatly reduced thecapital cost of the system
municipal water treatment plant contractsin the region.
UEM won an order for a seawater filtrationplant of 240 MLD capacity for RelianceIndustries Limited at their JamnagarRefinery, which is one of the largeseawater filtration plants in the World
projects andlicenses HEROTM
Technology.
stake (80%)in UEM. Water
Solutions Pvt. Ltd.
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capital cost of the system. seawater filtration plants in the World
Financial Performance
Strong growth with revenues in FY 2018 – 19 crossing INR 3500 Mnmark.
Finances backed by Toshiba Corporation, Japan (one of the largestconglomerates in the world having diverse business interests with aturnover in excess of USD 45 Bn).
Net Worth : INR 1103.41 Mn
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0202MARKET OUTLOOKMARKET OUTLOOKMARKET OUTLOOKMARKET OUTLOOK
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Water Availability
Increasing water scarcity with many countries in stress zone. Over 40% of world’s population is known to live in water stressed areas.Water shortage
Water availability per capita in India is 1,550 cum as
against stress benchmark of 1 700 cum per annumagainst stress benchmark of 1,700 cum per annum.
Pressure on fresh water resources in India
Regulations forcing proper industrial wastewater
treatment and recycling & reuse.
By 2040, water scarcity will have spread further; India and many other
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Source: ‘AQUASTAT: WORLD RESOURCES INSTITUTE
By 2040, water scarcity will have spread further; India and many othercountries will continue to be the largest countries facing water stress
Market Landscape
135310
187386
J
US
China +6.7%
+3.6%
31697
42753
93196
Fra
India
Japan +3.1%
+11.2%
+4 2%
29014
29886
31697
UK
Ger…
Fra… +4.2%
+1.5%
‐0.4%
20830
23563
29014
Brazil
Can…
UKCAPEX for 2018‐2020 (mUSD)
0.4%
+6.3%
+9.6%
9© 2019 Toshiba Water SolutionsSource : Global Water Market etc.
20386Korea +1.1%
Water Stress by 2020
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Market Landscape in India
W t Withd l CAPEXk 3/ USD
140160
Water Withdrawals20000
CAPEXkm3/y mUSD
80100120
015000
406080
5000
10000
020
2010 2015 2020 20300
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2010 2015 2020 2030
Municipal Industrial2018 2019 2020
Source : Global Water Market etc.
Key Solution – Recycle and Reuse
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0303ZERO LIQUID DISCHARGE
&& HEROTM
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What is a Zero Liquid Discharge System
Zero-liquid discharge (ZLD) is a treatment process in which all wastewater is purified
and recycled; therefore, leaving zero discharge at the end of the treatment cycle.
ZLD systems are capable of minimizing contamination of water sources and amplifying
water supply. In ZLD systems, membrane-based technologies are an attractive choicewater supply. In ZLD systems, membrane based technologies are an attractive choice
for industrial wastewater reclamation.
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Key Components of ZLD
Pretreatment Reverse Osmosis Evaporator
Pretreatment:
Shall include suitablet t t d di
Reverse Osmosis :
Shall include recovering thei t t d t f
Evaporator:
Shall include thermalti f th ROpretreatment depending on
the nature of effluent likeBiological Treatment, OilRemoval Unit, Filtration etc.
maximum treated water forreuse and recycle, minimizingthe flow to Evaporator.
M i t i bl
evaporation of the RORejects thus recovering thecomplete liquid effluent andproducing salts at the end ofth T t t h i th
This step is aimed atconditioning the effluent tominimize its scaling andfouling behavior on Reverse
Maximum sustainablerecovery achievable across aRO unit is the key governingparameter for the economicfeasibility of a ZLD unit
the Treatment chain thusenabling the system toachieve a ZLD.Evaporation is the mostenergy and capital intensive
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fouling behavior on ReverseOsmosis membranes.
feasibility of a ZLD unit. energy and capital intensiveunit in the treatment chainfor ZLD.
Performance of RO – Limiting Factors
In a Conventional RO Recovery is limited by any of the following factorsIn a Conventional RO, Recovery is limited by any of the following factorsdepending on the nature of Effluent:
Hardness scaling - precipitation of saturated salts ofHardness scaling precipitation of saturated salts ofCalcium, magnesium & Heavy metals ofsulfates, phosphates, carbonates etc. onto the surface of the membrane.
Silica scaling - precipitation of Reactive silica on exceeding itssolubility limit on the surface of the RO membrane.
Organic fouling - is a result of deposition of organics, on the surfaceof the membrane, typically on the feed /concentrate side.
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Biofouling – Growth of microbes on the surface of the RO Membranecausing permanent irreversible damage to the surface of the ROmembrane.
Conventional RO
Recovery can not be increased simply by adding stages
RO recovery is limited by scaling and fouling well before osmoticRO recovery is limited by scaling and fouling well before osmotic pressure limits recovery.
RO recovery in conventional RO can not sustainably operate at O eco e y co e t o a O ca ot susta ab y ope ate at80%+ if the feed water >20 ppm COD
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HERO™ (High Efficiency RO) – The only sustainable solution to Zero Liquid Discharge
• HERO™ is a technology specifically designed to purify difficult-to-treat feedwaters
• Its has several potential advantages over conventional RO: greater waterhi h lit t hi h ti fl ( llrecovery, higher quality permeate, higher operating flux (gallons per square
foot of membrane per day)• Conventional UF/RO (or MBR/RO) process is limited by :
—HardnessHardness—Silica—Organics—Bio Fouling
• HERO systems overcomes these and operates at a very high recovery whereasy p y g yconventional RO operates at moderate recovery and the cost of evaporation isvery high.
• HERO systems are most advantageous for applications with challenging feed
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water or in areas with high water costs, limited available water, high waterquality requirements, or Zero liquid discharge requirements
• HERO requires less cleaning and maintenance than conventional RO does.
HERO™ (High Efficiency RO) – How it Works?
The key to HERO is the chemical pretreatment that the feed waterThe key to HERO is the chemical pretreatment that the feed water undergoes before RO. The pretreatment removes hardness from the feed water and raises its pH, which enables high efficiency RO
HERO™ PreHERO™ Pre-Treatment (Removes
hardness & alkalinity)
HERO™ Evaporator
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HEROTM Feed (R), Permeate (M), and Reject (L)
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Comparison of HEROTM vs. Conventional RO
i l i h ffi iConventional RO High Efficiency RO
RO cleaning frequency is high and can be asoften as weekly if the fouling tendency of thef d i hi h
RO cleaning is less frequent, due to thereduction of fouling potential. Cleaningf b l i ffeed water is high. frequency can be as low as once in fewmonths.
RO membrane life is limited due to numerouscleaning cycles
RO membrane life is extended due to thelower frequency of cleaning cyclescleaning cycles. lower frequency of cleaning cycles.
Energy costs of evaporation are high due tothe limits on achievable RO recovery.
Energy costs are substantially reduced due tothe higher recovery achievable by the HEROsystemsystem.
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HEROTM - is more than Just Savings in Operating CostEvaporator Downtime
In a ZLD discharge project, sustainable operation of the MEE – Multiple Effect Evaporators which are at the tail end of the Process scheme, is very crucial in achieving Zero Discharge.
In case of frequent shutdown of evaporator for any failure, shall lead to not achieving ZLD.In case of frequent shutdown of evaporator for any failure, shall lead to not achieving ZLD.
Hardness Scaling in evaporator is one of the common problem experienced by Operators. It leads to low heat transfer Coefficients increasing Steam Consumption. Higher Downtime for Cleaning and Maintenance.
HEROTM systems as a part its pretreatment process eliminates hardness in the RO Feed and hence leading to very low levels or almost Nil hardness in Rejects which are fed to Evaporator.
HEROTM not only allows for a Higher Recovery but also enablesthe ETP-RO plant or High Recovery plants for a SustainableOperation with minimal Maintenance and Shutdowns.
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p
0404REFERENCES IN RECYCLE, REUSE AND ZLDREFERENCES IN RECYCLE, REUSE AND ZLD
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ZLD ETP at Bawal, Haryana
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Capacity: 1847cum/day ETP MEE-100 m3/dayDesign Build Year: January 2019
ETP ZLD at Bawal, Haryana
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ETP MEE-100 m3/dayDesign Build Year: January 2019
ETP ZLD at Sricity, Andhra Pradesh
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Capacity: 250 KLD ETP ZLDDesign Build Year: May 2016
ETP ZLD Plant at Gujarat
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Capacity: 400 KLD ETP & ZLDDesign Build Year: May 2017
Recycling Plant at Oman
Capacity: 10 000 cum / day (Phase I) & 10 000 cum / day (Phase I Expansion)
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Capacity: 10,000 cum / day (Phase – I) & 10, 000 cum / day (Phase - I Expansion)(Recycle & Reuse Plant)Design Build Year: 2016 & 2018O&M Period: 5 Years (Phase I) & 10 Years (Phase I Expansion)
MBR Based STP at Delhi
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Capacity: 1 MGD STP based on Membrane Bio Reactor, 4545 m3/dayDesign Build Year: June 2010
Conclusion
Water resources are becoming scarce, meaning that reuse options need to belooked into. In this perspective, zero liquid discharge is an emerging techniqueto minimize waste, treat toxic industrial waste streams and mitigate potentialwater quality impacts in receiving water streamswater quality impacts in receiving water streams.
In a Water Scarce Country like ours, it should be our goal to use Water in ajudicious manner and wherever possible, should opt for a system ortechnology that is able to treat and recycle wastewater sustainably in aneconomical manner.
For recycling/zero liquid discharge the High Efficiency Reverse Osmosis For recycling/zero liquid discharge, the High Efficiency Reverse Osmosistechnology really work very effectively and can be an excellent solution tomeet the statutory norms as stipulated by regulatory authorities.
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THANK YOUTHANK YOU
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